

Sec. 10. Human Body is Unique and 



Peculiar 



i 



Each normal human body resembles every other 

 such body, in form, size, and structure ; in chemical 

 elements, organs and parts. But it differs from every 

 other in these particulars: (1) The atoms of which 

 it is composed are exclusively its own; (2) it is a 

 new combination of these atoms; (3) it grew anew, 

 for itself, separately and apart from, and independent 

 of, every other such body; (4) the forces and mo- 

 tions, which produced it, were peculiar to it, in origin, 

 time and space. 



See Cent. Die. Supplement, "A-L," p. 582. ''He- 

 redity;" Encyc. Brit (9 ed.) 24, p. 818, " Variation. ' ' 



Sec. 11. Force and Motion 



Sir Isaac Newton's first law of motion is written 

 in these words: 



"Every body continues in its state of rest, or of 

 uniform motion in a straight line, except in so far 

 as it is compelled, by force, to change that state." 

 (Encyc. Brit. (9 ed.) 15, p. 676, "Mechanics.") 



"Energy may be defined,' says the Britannica, 

 "as the power of doing work, or of overcoming resist- 

 ance. A bent spring possesses energy, for it is capable 

 of doing work in returning to its natural form; a 



